1 | /**********************************************************************
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2 | *
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3 | * queryaction.h --
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4 | * Copyright (C) 1999 The New Zealand Digital Library Project
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5 | *
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6 | * A component of the Greenstone digital library software
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7 | * from the New Zealand Digital Library Project at the
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8 | * University of Waikato, New Zealand.
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9 | *
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10 | * This program is free software; you can redistribute it and/or modify
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11 | * it under the terms of the GNU General Public License as published by
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12 | * the Free Software Foundation; either version 2 of the License, or
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13 | * (at your option) any later version.
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14 | *
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15 | * This program is distributed in the hope that it will be useful,
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16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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18 | * GNU General Public License for more details.
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19 | *
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20 | * You should have received a copy of the GNU General Public License
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21 | * along with this program; if not, write to the Free Software
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22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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23 | *
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24 | *********************************************************************/
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25 |
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26 |
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27 | #ifndef QUERYACTION_H
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28 | #define QUERYACTION_H
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29 |
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30 | #include "gsdlconf.h"
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31 | #include "action.h"
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32 | #include "receptionist.h"
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33 |
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34 | struct colinfo_t {
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35 | void clear();
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36 | colinfo_t () {clear();}
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37 |
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38 | format_t *formatlistptr;
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39 | browserclass *browserptr;
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40 | };
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41 |
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42 | struct QueryResult_t {
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43 | void clear ();
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44 | QueryResult_t () {clear();}
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45 |
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46 | ResultDocInfo_t doc;
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47 | text_t collection;
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48 | };
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49 |
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50 | struct gteqQueryResult_t
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51 | {
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52 | bool operator()(const QueryResult_t &t1, const QueryResult_t &t2) const
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53 | { return t1.doc.ranking >= t2.doc.ranking; }
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54 | };
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55 |
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56 | typedef set<QueryResult_t, gteqQueryResult_t> QueryResult_tset;
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57 |
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58 |
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59 | class queryaction : public action {
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60 |
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61 | protected:
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62 |
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63 | receptionist *recpt;
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64 |
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65 | text_t formatstring;
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66 | int num_phrases;
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67 |
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68 | virtual void define_query_macros (cgiargsclass &args, displayclass &disp,
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69 | const FilterResponse_t &response);
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70 |
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71 | void define_history_macros (displayclass &disp, cgiargsclass &args,
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72 | recptprotolistclass *protos, ostream &logout);
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73 |
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74 | virtual void set_option_macro (const text_t ¯oname, text_t current_value,
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75 | const FilterOption_t &option, displayclass &disp);
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76 |
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77 | void output_ccp (cgiargsclass &args, recptprotolistclass *protos,
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78 | displayclass &disp, outconvertclass &outconvert,
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79 | ostream &textout, ostream &logout);
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80 |
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81 |
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82 |
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83 | bool search_multiple_collections (cgiargsclass &args, recptprotolistclass *protos,
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84 | browsermapclass *browsers, displayclass &disp,
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85 | outconvertclass &outconvert, ostream &textout,
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86 | ostream &logout);
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87 |
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88 |
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89 | bool search_single_collection (cgiargsclass &args, const text_t &collection,
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90 | recptprotolistclass *protos, browsermapclass *browsers,
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91 | displayclass &disp, outconvertclass &outconvert,
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92 | ostream &textout, ostream &logout);
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93 |
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94 |
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95 | bool save_search_history(cgiargsclass &args, const FilterResponse_t &response);
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96 | bool delete_search_history(cgiargsclass &args);
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97 |
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98 | public:
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99 | queryaction ();
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100 | virtual ~queryaction () {}
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101 |
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102 | void set_receptionist (receptionist *therecpt) {recpt=therecpt;}
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103 |
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104 | void configure (const text_t &key, const text_tarray &cfgline);
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105 | bool init (ostream &logout);
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106 |
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107 | virtual text_t get_action_name () {return "q";}
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108 |
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109 | virtual bool check_cgiargs (cgiargsinfoclass &argsinfo, cgiargsclass &args,
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110 | ostream &logout);
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111 |
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112 | void get_cgihead_info (cgiargsclass &args, recptprotolistclass *protos,
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113 | response_t &response, text_t &response_data,
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114 | ostream &logout);
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115 |
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116 | virtual void define_internal_macros (displayclass &disp, cgiargsclass &args,
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117 | recptprotolistclass *protos, ostream &logout);
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118 |
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119 | virtual void define_external_macros (displayclass &disp, cgiargsclass &args,
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120 | recptprotolistclass *protos, ostream &logout);
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121 |
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122 | virtual bool do_action (cgiargsclass &args, recptprotolistclass *protos,
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123 | browsermapclass *browsers, displayclass &disp,
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124 | outconvertclass &outconvert, ostream &textout,
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125 | ostream &logout);
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126 | };
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127 |
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128 | #endif
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